Public bug reported:
lightdm did not appear to come up upon reboot, tho these processes
exist:
*j101 root 1600 -1 1600 1 1600 11:56:00 0 poll_s Ssl lightdm
*j102 root 1665 1665 1665 1600 1665 11:56:03 0 poll_s Ss+
/usr/bin/X -core :0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
*j103 root 1600 -1 1600 1600 1767 11:56:13 0 wait Sl
lightdm --session-child 16 19
*j104 lightdm 1791 -1 1791 1767 1791 11:56:15 0 sigsus Ss
/bin/sh /usr/lib/lightdm/lightdm-greeter-session /usr/sbin/lightdm-gtk-greeter
*j105 lightdm 1791 -1 1791 1791 1797 11:56:18 0 poll_s Sl
/usr/sbin/lightdm-gtk-greeter
*j106 root 1600 -1 1600 1600 1900 11:56:31 0 pipe_w S
lightdm --session-child 12 19
instead i see messages as per a usual (noplymouth) reboot before lightdm
awakens. i tried chvt (via ssh), seems strangely unable to do anything.
but i came back a couple hours later and the chvt *had* happened. so i
tried again to "chvt 7". again the display immediately went into
suspend mode. hitting keys doesn't reawaken it. "chvt 2" or other VTs
followed by tapping keys also no effect (at least not within 10 or so
minutes).
this has not happened before since installing trusty, so i'd guess it's
not predictably repeatable.
my offhand guess fwiw is a latent bug in some display related driver.
even back in natty i remember occasionally somehow falling into a
situation where even chvt couldn't unfreeze the display.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: lightdm 1.9.3-0ubuntu1
ProcVersionSignature: Ubuntu 3.12.0-2.5-generic 3.12.0
Uname: Linux 3.12.0-2-generic i686
ApportVersion: 2.12.6-0ubuntu1
Architecture: i386
Date: Mon Nov 25 12:57:03 2013
LightdmConfig:
[SeatDefaults]
greeter-session=lightdm-gtk-greeter
user-session=Lubuntu
LightdmGreeterLog:
(lightdm-gtk-greeter:1797): GLib-CRITICAL **: g_shell_parse_argv: assertion
'command_line != NULL' failed
** (lightdm-gtk-greeter:1797): WARNING **: Failed to open sessions directory:
Error opening directory '/usr/share/lightdm/sessions': No such file or directory
** (lightdm-gtk-greeter:1797): WARNING **: Failed to load user image: Failed
to open file '/home/lucy/.face': No such file or directory
LightdmGreeterLogOld:
(lightdm-gtk-greeter:1727): GLib-CRITICAL **: g_shell_parse_argv: assertion
'command_line != NULL' failed
** (lightdm-gtk-greeter:1727): WARNING **: Failed to open sessions directory:
Error opening directory '/usr/share/lightdm/sessions': No such file or directory
** (lightdm-gtk-greeter:1727): WARNING **: Failed to load user image: Failed
to open file '/home/lucy/.face': No such file or directory
MarkForUpload: True
SourcePackage: lightdm
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: lightdm (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 trusty
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https://bugs.launchpad.net/bugs/1254880
Title:
lightdm not visible upon reboot
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